Battle of Vukovar: how 1,800 fighters held off a force of 36,000

i have an even better one. 21 soldiers held 24000 invaders. not even making this up https://en.wikipedia.org/wiki/Battle_of_Saragarhi This movie actually shows it https://www.imdb.com/title/tt6264938/?ref_=nv_sr_srsg_3_tt_7... watch with subs if you can

Roughly similar ratio to the Battle of Thermopylae.